Dive Sites

The deep waters of the Andaman Sea offer excellent diving, with warm water and good visibility, typically 20 to 35 meters. Located on the south of Koh Lanta we are well placed to reach the best dive sites available and away from the crowded dive boats operating from Phi Phi Islands and Phuket.

Shallow coves, deep drop off's, limestone outcrop's, seamounts, pinnacles, undersea caves and tunnels all form part of the diving adventures you can experience. Diving in the southern Andaman Sea will give you a unique chance to see a colorful and complex system of marine life from tiny Sea Horses and Ghost Pipefish to huge Manta Rays.

Koh Haa
This is one of our favorite destinations. Five beautiful limestone islands with a shallow lagoon and white powder beach above the surface, and a magical diving experience below. The islands are separated by deep water channels, and are famous for the exceptional visibility. There is a choice of six dive sites, each providing excellent diving for all levels of diver. Here you will find colorful coral gardens and fringing reefs, impressive walls, strange pinnacle formations, and huge cathedral like caves.

Marine life is both diverse and abundant, with beautiful soft corals, fans and anemones covering walls and pinnacles. The macro buff will find nudibranchs, ghost pipefish and sea horses, as well as many species of exotic reef dwellers, giant Morays and playful Octopus, whilst out in the blue Tuna and Barracuda hunt shoals of small fish in formation, creating a moving picture of silver and bronze.

Another great attraction of diving at Koh Haa is its location, just 15km. west of Pimalai. Departing at 0800 we have normally completed our first dive before anyone else arrives. After two dives with one hour surface interval, we are back at Pimalai at 1400. Leaving you the rest of day to relax!

Phi Phi Islands
Phi Phi provides a stunning setting, with a number of good dive sites to choose from, the best by far are the Bida islands. Koh Bida Nai is also known as fantasy rock, for the pinnacles creating a playground of swim throughs on the south of the island. This is a very popular area suitable for all levels of diver, with an average depth of 10 to 25 meters. It is famous for the huge Gorgonian fans found on the wall and ledges to the North of Koh Bida Nok. With limestone outcrops and pinnacles everywhere, covered with an amazing variety of soft corals and marine life. The little critters are abundant, but our favorites are the Turtles and the Leopard Sharks, which can grow to three meters in length, although you are more likely to encounter the two meter version. Koh Bida offers a great diving experience, but it must be said that all of the dive sites around Phi Phi can be busy. Situated North West of Pimalai we are normally return by 1545, after our two dive schedule. Occassionally, for the surface interval, we visit Maya Bay where the "The Beach" was filmed.

Hin Daeng (The Red Rock)
35 Km South West of Koh Lanta, we find the most famous dive site in Thailand. Many articles have been written about Hin Daeng and it is easy to see why, this is one of the most dramatic dive sites in Thai waters. The Red Rock is named from the huge red soft corals that cover the upper part of the sea mount. Rising up from the depths the peak of this rock formation only just breaks the surface, but underwater you will find a series of vertical walls and ledges that plunge down well below 50 meters on one side, and a relatively gentle slope and canyon on the other, that is home to an incredible variety of fauna and marine life.

When conditions are good the visibility can exceed 35 meters, and looking up at the rock formation surrounded by dense clouds of shoaling fish is a magical experience. Everything here is bigger, and Hin Daeng attracts many pelagic species. Rainbow Runners and giant Barracuda hang motionless in menacing shoals, while Jacks and Tuna are in perpetual motion buzzing in on the unwary. Sharks and Manta Rays are seen regularly and if you are very lucky a Whale Shark. The trip starts at 0800, returning at 1615 to Kantiang bay.

Hin Muang (The Purple Rock)
Hin Muang is the other world class dive site in the southern Andaman and our favorite, perhaps not as well known as Hin Daeng, but it is easily on par with the quality of diving in the Similan Islands or any other site Thailand has to offer. Situated 500 meters from Hin Daeng, it features a series of five sea mounts or a large ridge starting at eight meters below the surface and going progressively deeper with vertical walls dropping off to 70 meters, making it the deepest dive site in Thailand.

At 35 meters the ridge breaks up into a series of pinnacles and rocky outcrops that continue, well below recreational dive limits, and almost  join up with  Hin Daeng.   This  dive site is absolutely covered with purple and pink soft corals, close encounters with huge Manta Rays are common, often in groups, and large shoals of pelagic fish are every where. Hin Muang offers everything Hin Daeng offers and much more. On good days it is quite simply awesome, and a dive you will remember for a very long time.

Diving Conditions & Seasons
Diving at both Hin Daeng and Hin Muang can be challenging with strong and unpredictable surging currents, as with many deep water dive site. Similar to those experienced on the Brother islands in Egypt or some of the deeper sites around Pemba in Tanzania.

The Whale Shark season starts in February, and their numbers vary from the year to year. Most sightings occur at Hin daeng/Hin Muang, although we also see them at Koh Haa and Koh Bida.

Manta Rays can be seen in all months of the diving season (November-March), November & December are especially good to see them in groups or large numbers.

The Pimalai Dive Center is now open all year from. November to April remains the best time for scuba diving, but from May to October there are still plenty possibilities to scuba dive around Koh Lanta. The dive center Scubafish @ Pimalai offers very good trips, essentially to Koh Haa, Ko Rok, Hin Daeng & Hin Muang and also to the southern islands such as Koh Kradan, Koh Mook or Koh Ngai; the boats depart from the Old Town pier on the Lanta east coast where the boats are moored. Scuba diving is of course subject to sea/ weather conditions and this all year around; from May to October, please note that a minimum number of divers is usually required to operate the boat trip – eg; minimum 4 divers for a trip to Koh Haa, minimum 6 for a trip to Hin Daeng.

For all diving enquiries related to scuba diving please contact directly diving@pimalai.com Thank you.


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